Families of Chinese landslide victims seek answers

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(CNN)Workers have recovered a total of 58 bodies from a landslide caused by the collapse of a massive waste dump in the southern Chinese city of Shenzhen.

The Internet Information Office of the Shenzhen municipal government said on its Weibo social media account Wednesday that 52 of the bodies were on the missing list and police are trying to identify the other six.

A total of 77 were reported missing. More than 10,000 people were involved in the rescue efforts.

Authorities said it was hard to calculate the exact number of missing because many of the people who lived and worked in the industrial district were thought to be migrant workers from China's poorer, inland provinces, who are often unregistered, or their relatives live too away to be contacted quickly.

The landslip took place on December 20 and engulfed 33 buildings, with the rubble piled four stories high in places.

Photos:Chaos and destruction

This aerial photo shows the site of the landslide that hit three industrial parks in Shenzhen in south China's Guangdong province on December 21, 2015.

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Rescue workers look for survivors on December 22, 2015.

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Chinese rescuers work at the land slidesite. The landslide that hit southern China's Shenzhen on December 20, 2015 was China's second industrial disaster in four months.

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Photos:Chaos and destruction

A woman prays near a collapse building on December 21, 2015 in Shenzhen, China.

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Many of the buildings at the industrial park in the city of Shenzhen were destroyed or badly damaged.

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Rescuers look for survivors at the industrial park in southern China's Guangdong province on December 20.

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The search through the piles of rubble was made more difficult as light faded.

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The badly damaged buildings made it extremely dangerous for rescue workers.

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Photos:Chaos and destruction

This dramatic photo shows the scale of the landslide's destruction.

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Police have arrested 11 people for their role in the landslide, the prosecutor's office in Bao'an District said last week.

Among the arrested are the legal counsel of the company managing the waste dump, the deputy general manager, as well as the site's supervisor and coordinator, prosecutors say.